摘要
在10 Gb/s光传输系统中进行了以光子晶体光纤(PCF)为非线性介质的全光开关实验研究。实验中高强度光脉冲经过非线性系数为普通常规光纤36倍的25 m长光子晶体光纤后,观察到了由于自相位调制效应(SPM)而导致的光谱展宽现象。实验进一步研究了基于这一效应的全光开关特性,并得到了很好的开关特性曲线。同时还发现这种全光开关具有全光波形整形和波长变换的功能,在实验中变换脉冲中心波长偏离入射脉冲波长4 nm。实验结果表明,这种具有高非线性系数的光子晶体光纤非常有利于器件的小型化和集成化。
In this paper, the experiment on all-optical switch based on photonic crystal fiber （PCF） is reported. In experiment, 25-meter-long PCF is used as nonlinear media with nonlinear coefficient γ = 36 W^-1· km^-1 at 1550 nm. The spectrum of output pulse is broadened obviously because of self-phase modulation （SPM） and very good transfer function of the switch is obtained. Additionally, the switch can also be used as reshaping and wavelength conversion devices. The experiment shows that PCF is benefit to the miniaturization and integration of all-opucal device. PCF will play an important role in optical fiber communication, especially in fabrication of all-optical devices.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2005年第12期1650-1653,共4页
Chinese Journal of Lasers
基金
国家973计划项目(2003CB314906)
国家863计划项目(2003AA311010)
教育部重大项目(104046)
北京教委共建项目(XK100130437)资助课题
关键词
光电子学
光子晶体光纤
全光开关
自相位调制
波长变换
photoelectronics
photonic crystal fiber
all-optical switch
self-phase modulation
wavelength conversion
